Can I add a Widget to a Page (not the Sidebar or Footer)

I want to add a Picture Gallery and an Event Calendar to a specific Page. I’m assuming that I can download Plugins for a Picture Gallery and an Event Calendar and then have access to a Widgets for each of my needs.

It’s easy to add Widgets to the Sidebar and the Footer areas, however, I don’t know how to add individual Widgets to the larger Page area.

Any ideas?

Thanks,
Bob R